HISTORY
1946
Proposal
1947
Final Plan
1948
- 1959
1960
- 1969
1970
- 1979
1980
- 1989
1990
- 1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
NANP Area Code History: 2007
With the advent of the widespread implementation of voice over IP and
the possibility of an ARPA internet-routed solution that would integrate
phone numbers and IP addresses, demand for area codes remained at lows not
seen since the late 1980s.
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Old |
New
|
State (linked): Geographic
Description
|
Permissive
|
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| 815 |
779 Overlay |
IL: Northwestern Illinois (779) 779-0000 |
prior --- 10D (M) 02/17/07 --- NPA 03/17/07 |
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| 630 |
331 Overlay |
IL: Southwestern Chicago Suburbs (331) 330-0331 |
prior --- 1+10D (M) 30 days after exhaust of 630 NPA --- NPA 30 days after exhaust of 630 NPA |
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| 505 |
575 Split |
NM: Northwestern New Mexico |
Permissive 10/07/07 --- Mandatory 10/05/08 |
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| 503 |
971 Overlay Expansion |
OR: Northwestern Oregon |
10D (P) 10/21/07 --- 10D (M) 04/27/08 --- NPA 04/27/08 |
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